/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:13:32,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:13:32,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:13:32,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:13:32,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:13:32,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:13:32,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:13:32,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:13:32,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:13:32,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:13:32,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:13:32,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:13:32,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:13:32,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:13:32,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:13:32,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:13:32,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:13:32,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:13:32,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:13:32,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:13:32,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:13:32,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:13:32,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:13:32,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:13:32,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:13:32,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:13:32,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:13:32,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:13:32,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:13:32,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:13:32,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:13:32,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:13:32,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:13:32,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:13:32,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:13:32,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:13:32,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:13:32,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:13:32,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:13:32,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:13:32,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:13:32,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:13:32,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:13:32,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:13:32,632 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:13:32,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:13:32,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:13:32,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:32,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:13:32,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:13:32,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:13:32,634 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:13:32,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:13:32,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:13:32,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:13:32,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:13:32,938 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:13:32,938 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032a.c [2020-07-18 00:13:33,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29836d68/aa82a8d0986d491d8d862b5684335687/FLAGd5d4bcfee [2020-07-18 00:13:33,511 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:13:33,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032a.c [2020-07-18 00:13:33,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29836d68/aa82a8d0986d491d8d862b5684335687/FLAGd5d4bcfee [2020-07-18 00:13:33,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29836d68/aa82a8d0986d491d8d862b5684335687 [2020-07-18 00:13:33,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:33,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:33,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:33,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:33,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:33,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715cd5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33, skipping insertion in model container [2020-07-18 00:13:33,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:33,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:34,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:34,103 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:34,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:34,153 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:34,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34 WrapperNode [2020-07-18 00:13:34,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:34,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:34,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:34,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:34,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... [2020-07-18 00:13:34,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:34,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:34,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:34,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:34,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-18 00:13:34,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-18 00:13:34,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-18 00:13:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-18 00:13:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-18 00:13:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:34,851 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:34,852 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-18 00:13:34,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:34 BoogieIcfgContainer [2020-07-18 00:13:34,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:34,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:34,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:34,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:34,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:33" (1/3) ... [2020-07-18 00:13:34,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357beacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:34, skipping insertion in model container [2020-07-18 00:13:34,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:34" (2/3) ... [2020-07-18 00:13:34,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357beacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:34, skipping insertion in model container [2020-07-18 00:13:34,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:34" (3/3) ... [2020-07-18 00:13:34,866 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-07-18 00:13:34,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:34,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:34,900 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:34,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:34,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:34,920 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:34,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:34,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:34,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:34,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:34,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-07-18 00:13:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:13:34,948 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:34,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:34,950 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:34,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1398005522, now seen corresponding path program 1 times [2020-07-18 00:13:34,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:34,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925077406] [2020-07-18 00:13:34,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:35,185 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {87#true} is VALID [2020-07-18 00:13:35,186 INFO L280 TraceCheckUtils]: 1: Hoare triple {87#true} #valid := #valid[0 := 0]; {87#true} is VALID [2020-07-18 00:13:35,186 INFO L280 TraceCheckUtils]: 2: Hoare triple {87#true} assume 0 < #StackHeapBarrier; {87#true} is VALID [2020-07-18 00:13:35,187 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#true} assume true; {87#true} is VALID [2020-07-18 00:13:35,190 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {87#true} {87#true} #141#return; {87#true} is VALID [2020-07-18 00:13:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:35,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {87#true} is VALID [2020-07-18 00:13:35,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {87#true} havoc ~w~0; {87#true} is VALID [2020-07-18 00:13:35,244 INFO L280 TraceCheckUtils]: 2: Hoare triple {87#true} havoc ~exponent_less_127~0; {87#true} is VALID [2020-07-18 00:13:35,245 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#true} assume !true; {88#false} is VALID [2020-07-18 00:13:35,246 INFO L280 TraceCheckUtils]: 4: Hoare triple {88#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {88#false} is VALID [2020-07-18 00:13:35,246 INFO L280 TraceCheckUtils]: 5: Hoare triple {88#false} assume !(~exponent_less_127~0 < 23); {88#false} is VALID [2020-07-18 00:13:35,247 INFO L280 TraceCheckUtils]: 6: Hoare triple {88#false} assume 128 == ~exponent_less_127~0; {88#false} is VALID [2020-07-18 00:13:35,247 INFO L280 TraceCheckUtils]: 7: Hoare triple {88#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {88#false} is VALID [2020-07-18 00:13:35,248 INFO L280 TraceCheckUtils]: 8: Hoare triple {88#false} assume true; {88#false} is VALID [2020-07-18 00:13:35,248 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {88#false} {87#true} #137#return; {88#false} is VALID [2020-07-18 00:13:35,250 INFO L263 TraceCheckUtils]: 0: Hoare triple {87#true} call ULTIMATE.init(); {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:13:35,251 INFO L280 TraceCheckUtils]: 1: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {87#true} is VALID [2020-07-18 00:13:35,251 INFO L280 TraceCheckUtils]: 2: Hoare triple {87#true} #valid := #valid[0 := 0]; {87#true} is VALID [2020-07-18 00:13:35,252 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#true} assume 0 < #StackHeapBarrier; {87#true} is VALID [2020-07-18 00:13:35,252 INFO L280 TraceCheckUtils]: 4: Hoare triple {87#true} assume true; {87#true} is VALID [2020-07-18 00:13:35,253 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {87#true} {87#true} #141#return; {87#true} is VALID [2020-07-18 00:13:35,253 INFO L263 TraceCheckUtils]: 6: Hoare triple {87#true} call #t~ret9 := main(); {87#true} is VALID [2020-07-18 00:13:35,254 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#true} ~x~0 := 0.0; {87#true} is VALID [2020-07-18 00:13:35,256 INFO L263 TraceCheckUtils]: 8: Hoare triple {87#true} call #t~ret6 := round_float(~x~0); {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:35,257 INFO L280 TraceCheckUtils]: 9: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {87#true} is VALID [2020-07-18 00:13:35,257 INFO L280 TraceCheckUtils]: 10: Hoare triple {87#true} havoc ~w~0; {87#true} is VALID [2020-07-18 00:13:35,257 INFO L280 TraceCheckUtils]: 11: Hoare triple {87#true} havoc ~exponent_less_127~0; {87#true} is VALID [2020-07-18 00:13:35,259 INFO L280 TraceCheckUtils]: 12: Hoare triple {87#true} assume !true; {88#false} is VALID [2020-07-18 00:13:35,259 INFO L280 TraceCheckUtils]: 13: Hoare triple {88#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {88#false} is VALID [2020-07-18 00:13:35,260 INFO L280 TraceCheckUtils]: 14: Hoare triple {88#false} assume !(~exponent_less_127~0 < 23); {88#false} is VALID [2020-07-18 00:13:35,260 INFO L280 TraceCheckUtils]: 15: Hoare triple {88#false} assume 128 == ~exponent_less_127~0; {88#false} is VALID [2020-07-18 00:13:35,260 INFO L280 TraceCheckUtils]: 16: Hoare triple {88#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {88#false} is VALID [2020-07-18 00:13:35,261 INFO L280 TraceCheckUtils]: 17: Hoare triple {88#false} assume true; {88#false} is VALID [2020-07-18 00:13:35,261 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {88#false} {87#true} #137#return; {88#false} is VALID [2020-07-18 00:13:35,261 INFO L280 TraceCheckUtils]: 19: Hoare triple {88#false} ~res~0 := #t~ret6; {88#false} is VALID [2020-07-18 00:13:35,262 INFO L280 TraceCheckUtils]: 20: Hoare triple {88#false} havoc #t~ret6; {88#false} is VALID [2020-07-18 00:13:35,262 INFO L280 TraceCheckUtils]: 21: Hoare triple {88#false} #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {88#false} is VALID [2020-07-18 00:13:35,262 INFO L280 TraceCheckUtils]: 22: Hoare triple {88#false} assume !#t~short8; {88#false} is VALID [2020-07-18 00:13:35,263 INFO L280 TraceCheckUtils]: 23: Hoare triple {88#false} assume !#t~short8; {88#false} is VALID [2020-07-18 00:13:35,263 INFO L280 TraceCheckUtils]: 24: Hoare triple {88#false} havoc #t~short8; {88#false} is VALID [2020-07-18 00:13:35,264 INFO L280 TraceCheckUtils]: 25: Hoare triple {88#false} havoc #t~ret7; {88#false} is VALID [2020-07-18 00:13:35,264 INFO L280 TraceCheckUtils]: 26: Hoare triple {88#false} assume !false; {88#false} is VALID [2020-07-18 00:13:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:35,270 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:35,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925077406] [2020-07-18 00:13:35,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:35,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:13:35,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037727636] [2020-07-18 00:13:35,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-18 00:13:35,285 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:35,289 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:13:35,341 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:35,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:13:35,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:35,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:13:35,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:13:35,355 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 4 states. [2020-07-18 00:13:36,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:36,090 INFO L93 Difference]: Finished difference Result 155 states and 180 transitions. [2020-07-18 00:13:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:13:36,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-18 00:13:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2020-07-18 00:13:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2020-07-18 00:13:36,116 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 180 transitions. [2020-07-18 00:13:36,345 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 180 edges. 180 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:36,372 INFO L225 Difference]: With dead ends: 155 [2020-07-18 00:13:36,373 INFO L226 Difference]: Without dead ends: 76 [2020-07-18 00:13:36,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:13:36,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-18 00:13:36,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-18 00:13:36,492 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:36,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-18 00:13:36,493 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-18 00:13:36,493 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-18 00:13:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:36,501 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-07-18 00:13:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-18 00:13:36,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:36,502 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:36,502 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-18 00:13:36,503 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-18 00:13:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:36,509 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-07-18 00:13:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-18 00:13:36,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:36,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:36,511 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:36,511 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-18 00:13:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-07-18 00:13:36,518 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 27 [2020-07-18 00:13:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:36,519 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-07-18 00:13:36,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:13:36,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states and 81 transitions. [2020-07-18 00:13:36,627 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-07-18 00:13:36,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-18 00:13:36,629 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:36,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:36,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:36,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:36,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:36,631 INFO L82 PathProgramCache]: Analyzing trace with hash -687584586, now seen corresponding path program 1 times [2020-07-18 00:13:36,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:36,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280347772] [2020-07-18 00:13:36,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:36,766 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:36,767 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 00:13:36,767 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 00:13:36,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:13:36,786 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 00:13:36,786 WARN L170 areAnnotationChecker]: round_floatENTRY has no Hoare annotation [2020-07-18 00:13:36,787 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:36,787 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:36,787 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 00:13:36,787 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-18 00:13:36,787 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:36,788 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-18 00:13:36,788 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:36,788 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:36,788 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 00:13:36,789 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-18 00:13:36,790 WARN L170 areAnnotationChecker]: L58-2 has no Hoare annotation [2020-07-18 00:13:36,790 WARN L170 areAnnotationChecker]: L58-2 has no Hoare annotation [2020-07-18 00:13:36,790 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 00:13:36,790 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-18 00:13:36,790 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: L58-3 has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-18 00:13:36,791 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-18 00:13:36,792 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: L79-1 has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: L79-1 has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 00:13:36,793 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-18 00:13:36,794 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-18 00:13:36,794 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-18 00:13:36,795 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-18 00:13:36,796 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-18 00:13:36,796 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L79-6 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L79-6 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L61-1 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L79-3 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-18 00:13:36,797 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L79-7 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L79-9 has no Hoare annotation [2020-07-18 00:13:36,798 WARN L170 areAnnotationChecker]: L61-2 has no Hoare annotation [2020-07-18 00:13:36,805 WARN L170 areAnnotationChecker]: L79-4 has no Hoare annotation [2020-07-18 00:13:36,805 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-18 00:13:36,805 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-18 00:13:36,805 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-18 00:13:36,805 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: round_floatFINAL has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L79-8 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L79-10 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L61-3 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-18 00:13:36,806 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: round_floatEXIT has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-18 00:13:36,807 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-18 00:13:36,808 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-18 00:13:36,809 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-18 00:13:36,810 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-18 00:13:36,811 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-18 00:13:36,811 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-18 00:13:36,811 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:13:36,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:13:36 BoogieIcfgContainer [2020-07-18 00:13:36,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:13:36,826 INFO L168 Benchmark]: Toolchain (without parser) took 2946.76 ms. Allocated memory was 135.3 MB in the beginning and 255.3 MB in the end (delta: 120.1 MB). Free memory was 99.4 MB in the beginning and 225.7 MB in the end (delta: -126.3 MB). Peak memory consumption was 117.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,828 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 135.3 MB. Free memory was 117.4 MB in the beginning and 117.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.88 ms. Allocated memory is still 135.3 MB. Free memory was 99.0 MB in the beginning and 87.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,830 INFO L168 Benchmark]: Boogie Preprocessor took 127.38 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 87.5 MB in the beginning and 177.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,839 INFO L168 Benchmark]: RCFGBuilder took 574.32 ms. Allocated memory is still 199.8 MB. Free memory was 176.3 MB in the beginning and 140.9 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,840 INFO L168 Benchmark]: TraceAbstraction took 1962.63 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 140.9 MB in the beginning and 225.7 MB in the end (delta: -84.8 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:36,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 135.3 MB. Free memory was 117.4 MB in the beginning and 117.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.88 ms. Allocated memory is still 135.3 MB. Free memory was 99.0 MB in the beginning and 87.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.38 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 87.5 MB in the beginning and 177.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 574.32 ms. Allocated memory is still 199.8 MB. Free memory was 176.3 MB in the beginning and 140.9 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1962.63 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 140.9 MB in the beginning and 225.7 MB in the end (delta: -84.8 MB). Peak memory consumption was 94.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = 0.0f; [L76] CALL, EXPR round_float(x) [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; [L76] RET, EXPR round_float(x) [L76] float res = round_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 85 SDtfs, 13 SDslu, 64 SDs, 0 SdLazy, 94 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...